Coke-drawing machine.



PA'TBNTED MAR. 10,-1903.

B. J. -1![AT]ES01 T. COKE DRAWING MACHINE.

APPLIOATION FILED AUG. 5, 1902.

' 5 sums-sum 1.

I0 MODEL.

No. 722,599. PATENTED MAR. 10, 1903.

B. J. MATTESON.

COKE DRAWING MACHINE.

APPLICATION FILED AUG. 6, 1902.

' R0 MODEL. I 5 SHEETS-SHEET 4.

Wine 5* e 4 J7ZU671/t07. W jurfonddhitdfi Ti: NDRRI PETERS C0 PHOTOLIYHO WASHINGTON D C No. 722,599. PATENTED MAR. 10, 1903.

B. J. MATTBSON.

00KB DRAWING MACHINE.

APPLICATION FILED AUG. 6,1902.

I0 MODEL. BSHEETS BHBE'E 5.

UNITED STATES BURTON J. MATTESON, OF TRINIDAD, COLORADO.

COKE-DRAWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 722,599, dated March10, 1903.

Application filed August 5, 1902.

T0 to whom, it may concern.-

Be it known that I, BURTON J. MATTESON, a citizen of the United States,residing at Trinidad, in the county of 'Las Animas and State ofColorado, have invented new and useful Improvements in Coke-DrawingMachines, of which the following is a specification.

This invention relates to a coke-drawing machine; and the objects of theinvention are to provide an effective apparatus of this character whichcan be readily propelled indifferent directions, and which has a drawingmember operable to remove the coke from all parts of the oven anddeliverthe same onto conveying mechanism forming a part of the machine, andwhich is so arranged as to deliver said coke into a car or anyotherdesired place, and the several operations are all under the easy controlof an operator.

I will hereinafter describe indetail the machine in one convenientembodiment thereof, it beingunderstood, of course, thatthe invention isnot limited to the parts nor to their arrangement in the mannerindicated in the description, for many variations as to these points maybe adopted within the scope of the claims succeeding such description.

The improved machine is clearly shown in the accompanying drawings,forming a part of this specification, and in which- Figure l is an endelevation of said machine, showing the same in adjacence to a coke-oven.Fig. 2 is a side elevation as seen from the right in Fig 1. Fig. 3 is aplan view of the same. Fig. 4 is a detail perspective view of a pinionand a portion of the shaft carrying the same, the two parts beingseparated. Fig. 5 is a similar view of a rack and its carrler andshifting device. Fig. 6 is an elevation of the mechanism for effectingthe reciprocation of the draw-bar. Fig. 7 is a similar View as seen fromthe left in Fig. 6.

' Fig. Sis a like view with the mechanism for Serial No. 118,535. (Nomodel.)

of the same. Fig. 12 is a detail view of a modification for securing thetilting movement of the carrier for the draw-bar.

Like characters refer to like parts in all the figures of the'drawing's.The improved apparatus includes in its organization a wheeled truck 1,the wheels of which are adapted to travel upon the rails 2, laid alongthe front of the battery of cokeovens, as shown in Fig. 1, and saidtruck has of course a deck or platform upon which the operator oroperators can stand and constitutes a framing for sustaining thedifierent parts of the machine.

The truck 1, which is adapted to be propelled back and forth along thetrack so that the draw-barcarried thereby can successively effect thedischarge of the coke from the several ovens, is adapted to sustain atone end thereof a motor of some suitable kind, which I have not deemedit necessary to show. I have, however, represented the motor or engineshaft, the same being denoted by 3 and being sustained by suitablebearings upon the deck or platform of the car or truck and carrying atone end the usual fly-wheel.

The several mechanisms are operated through suitable connections fromthe motorshaft 8, and they may be of any suitable kind. I will firstdescribe the mechanism for propelling the truck or car, the sameincluding instrumentalities for securing the movement of the truckinopposite directions. The motor-shaft 3 fixedly carries at its inner endthe pinion 4, meshing with the gear 5, suitably fastened to the mainshaft 6, supported by suitable bearings upon the truck. The shaft 6,intermediate its ends,has rigidly secured thereto the gear 7, meshingwith the gear 8, of like size, fastened suitably to the shaft 9.

A duplex cone is shown at 10, the same be ing feathered on the shaft 9and its respective and oppositely-inclined sections being adapted toalternately engage the working surface of the cone 11, suitably securedto the inner end of the shaft 12, connected by sprocket-gearing 13 withone of the axles of the truck or car 1. The duplex cone 10 is adapted tobe shifted by a lever 14, fulcrumed intermediate its length to asuitable bracket upon the truck and connected at its lower end with arod 15, jointed to the lower end of the hand-lever 16, which is held inthe adjusted position by means of the usual detent and sector. In Fig. 8the hand-lever is shown as being in its intermediate position, at whichtime neither of the parts of the duplex driving-cone 10 is in contactwith the driven cone 11. By shifting the lever 16, however, to the rightor left, as the case may be, one or the other of the sections of theduplex cone will be put into working relation with the cone 11, so as topropel the truck through the hereinbefore-described connections. If thesection of the cone 10 on the right he in engagement with the cone 11 todrive the truck in one direction and it be desired to reverse thismovement, this can be accomplished by moving the other section of thecone 10 into contact with the cone 11, and of course the truck can bestopped in front of an oven by moving both sections of the cone 10 outof engagement with the cone 11, which operation is efiected by themanipulation of the handlever 16.

Referring now more particularly to Fig. 1, the numeral 17 denotes ashaft sustained by the vertically-disposed A-shaped standards 17', whichis adapted to be oppositely rotated, as will hereinafter appear, andwhich carries a power-transmitting member, as the pinion 18, fortransmitting reciprocatory motion to the draw-bar 19, the latter havingalong its under side for a suitable distance rack-teeth adapted to meshwith those of the pinion, and the pinion is connected to its shaft by aball-and-socket joint, as will hereinafter appear, so that the draw-barcan be shifted relatively to the shaft 17 without affecting the drivingconnection between said shaft and its pinion. Theshaft 6 is connected bysprocketgearing 20 with a counter-shaft 21, which is connected bysimilar gearing 22 with a shaft 23, the terminal sprocket gear or wheelbeing denoted by 24, as shown most clearly in Fig. 3. Said shaft 9 isconnected by sprocketgearing 25 with the counter-shaft 26, it being seenthat said counter-shafts are supported on opposite sides of the machine.The said shaft 26 is connected by sprocket-gearing 27 with the shaft 23,the terminal sprocket gear or wheel being denoted by 28. All thesprocket wheels or gears, except the terminal ones, are fixed upon theirshafts, and it will be evident that by virtue of the connections thesprocket-wheels 24 and 28 will be oppositely rotated, and the partsshould be so proportioned that such sprocket-wheels 24 and 28 will berotated at the same speed. These sprocket-Wheels through the agency ofthe clutch 29, which is keyed to the shaft 23 for sliding movement, areadapted to be alternately clutched or coupled to the shaft 17 foreifecting the movement of said shaft, and hence of the draw-bar 19, inopposite directions.

Referring now to Fig. 6, it will be seen that the clutch 29 hasoppositely-inclined cone portions adapted to alternately fit intosimilar-shaped seats or sockets in the sprocketwheels 24 and 28, andsaid clutch is adapted to be operated by the lever 30, the same havingat its upper end the usual fork adapted to fit in a peripheral channelin the clutchbody. It will be understood that when the clutch 29 is indriving engagement with the sprocket-wheel 24 the shaft 23 will bedriven in one direction,and the reverse direction will be followed whenthe said clutch is put into contact with the other sprocket-wheel. Thelever 30 is rigidly secured to a suitably-supported rock-shaft 31, fromwhich horizontal arms 32 extend oppositely, said arms being connected bydepending links 33 with the parallel levers 34, the said shaft 31 andlevers 34 being carried by suitable uprights upon the truck. The innerends of the parallel levers 34 are connected with depending stems of thetreadles 35, which are normally upheld by coiled springs 36, hearingagainst the under sides of said treadles and also against the floor ofthe truck, said treadles being arranged side by side in adjacence. Itwill be seen that one of the links is connected with its lever at apoint beyond or to the right of its fulcrum, while the other link isunited to its lever at a point between the fulcrum thereof and theactuating-treadle, the result being that the shipping-lever 30 isoperated in one direction by power applied to a treadle 35 and in theopposite directions through the intermediate connections by powerapplied to the other treadle. The treadles are shown as occupying theirelevated positions in Fig. 6, and when they are alternately depressedthe springs thereof are put under compression, so that when the foot istaken from the treadle the latter is instantly returned to its upperposition by the force of the relaxing-spring. The draw-bar 19 isreciprocatory between the side walls of a boxing or guide 37 ofinverted-channel form and which is slidable between the superposed rings38, suitably united. The drawbar guide or boxing 37 has a turningmovement between the superposed upper rings 38, constituting a suitablecarrier for said boxing, and the lower ring is in the nature of a trackor turn-table for said boxing, the latter having angular flanges or feet39 at its opposite ends adapted to travel upon said lower ring. A strap40 is supported by the upper ring 38 in a direction crosswise to theboxing 37, and it is adapted to centrally receive the pivot 41, whichmay be a bolt or rivet and which extends through the cross-bar of theupper ring and also through the top of the channeled guide or boxing 37,the strap and pivot constituting a suitable means to pivotally securethe boxing or guide in place. The boxing is adapted to be moved upon thelower ring or track 38 by suitable means, as will hereinafter appear.

The pinion 18 is connected to its shaft 17 by a ball-and-socket union,one simple form of which will now appear. The shaft 17 is provided witha spherical portion 42, adapted to fit in-a similar-shaped seat in thepinion 18, said spherical portion 42 having oppositely-disposed keys orpins 43, adapted to fit keyways or grooves in the wall of the sphericalsocket or seat, by reason of which the pinion can be shifted laterallyon the shaft without affecting the driving connection between saidparts. The parts are so constructed that the pinion can have a movementof at least one hundred degrees, so as to secure a considerable range oflateral movement for the draw-bar. The pinion 18 is shownas split inorder that it may be fitted to the spherical portion 42, and the twosections of the same are held together by plates or rings 44,countersunk in the opposite faces of said pinion. The superposed rings38, which, it willbe understood, are in the nature of a unitarystructure, have at diametrically opposite sides and below the lower ringthe sleeves 45, supported for oscillation in the upper ends of the A-shaped bearings 17, one of the sleeves extending entirely through itsbearing and having rigidly secured thereto the depending sector 46,

meshing with a like sector 47, suitably pivoted at its lower end. Thehand-lever 48 is fulcrumed at its lewer end to a bearing upon the flooror platform of the truck 1 and is connected in some suitable mannerbetween its ends to the lower sector 47, so as to oscillate the latter.By operating the lower sector it will be apparent that the upper onewill also be operated so that the superposed rings 36 can be given atilting movement, so as to impart a like movement to the drawbar carriedbetween the same, said draw-bar being capable also of lateral motion, ashereinbefore set forth. By these two movements of the draw-bar,therefore, it is possible to reach all parts of the oven for effectingthe complete discharge of the same. Instead of tilting the carrier forthe draw-bar by the intermeshiug sector-gear I can accomplish thisresultby the mechanism shown in Fig. 12, the sector 46 in this case meshingwith the pinion 49, suitably supported to the shaft to which thehand-lever 50 is suitably fastened.

To uphold the draw-bar the guide or boxing 37 therefor has supportedbelow the same in some convenient manner pinions 51, the teeth of whichare adapted to mesh with those of the draw-bar at points at oppositesides of the main pinion 18.

What I term the tilting movement of the draw-bar is secured by themeshing sectors or sector and pinion hereinbefore described. I will nowset forth a means for securing the lateral movement of the same.

A hand-lever is shown at 52, it being fulcrumed at its lower end to asuitable bearing a crank portion, so that the lever can be operatedwithout the same striking the crossbar of the adjacent and substantiallyA- shaped standard 17. A link 53 is connected at its opposite ends byball-and-soeket joints or other universal connections, as at 54, withthe hand-lever 52 and boxing or guide 37, respectively, and by virtue ofthese connections it will be evident that the draw-bar can befreelytilted without moving the hand-lever 52. By manipulating saidhand-lever, however, the boxing 37 through the intermediate link canbe'swung around in either direction, so as to secure what may beconsidered the lateral motion of the draw-bar. As the drawbar 19 ismoved laterally the teeth thereof, being in mesh with the pinion 18,will carry said pinion in the corresponding direction, so that thedriving relation between the pinion and rack-teeth will be maintainedunder all conditions within the limits of the lateral motion of the saiddraw-bar.

The draw-bar is shown as provided at its inner end with the drawingimplement or hoe 55, socketed thereon and held in place by a wedge pinor key, so that the said hoe can be removed for the purpose ofsubstituting there-' for a rake, which I have not shown. At thecommencement of operation the rake is applied to the draw-bar, and thesame works up and down and sidewise, so as to loosen up the coke, andwhen this has been accomplished the rake is detached and the drawingimplement or hoe put upon the draw-bar, so as to effect the discharge ofthe coke. When the draw-bar is given an outward movement, the drawingimplement thereon is adapted to pull out the coke through the door ofthe oven, and the same drops onto a primary conveyer 56, which deliversit onto a secondary conveyer 57, the latter in turn carrying the cokeinto a car or otherwise disposing of the same. As the primary conveyerhas no movement relatively to the truck, the shafts thereof are carriedby fixed bearings of some suitable kind upon the said truck. Theseconveyers may be of any desirable length or width and of such aconstruction as will secure the sifting of the coke while upon the upperor working runs thereof. Any of the well-known forms of conveyers now onthe market can be utilized for this purpose. The secondary conveyer, aswill hereinafter appear, has a lateral movement relatively to the truckin order that the discharge end of the same conveyer can be moved fromplace to place. The primary conveyer upon which the coke is initiallyplaced-is driven as follows: The counter-shaft 21 is connected bysprocket-gearing 58 with the outermost shaft of the said primaryconveyer.

The mechanism for operating the secondary conveyer should be such aswill permit the same to move laterally without affecting the drivingconnect-ions of the same, as will now appear. 1

The shaft 21 is connected by sprocket-gearing 59 with the shaft 60,supported byabearing 61, mounted below the floor or deck of the truck,the said shaft being horizontally disposed and fixedly carrying abevel-pinion 62, (see Fig. 2,) meshing with a bevel-gear 63, fixed tothe lower end of the vertical stubshaft and fixedly carrying at itsupper end a bevel-gear 65, said stub-shaft extending centrally throughthe bracket and also through the yoke 66, supported by said bracket. Itwill be evident, therefore, that the yoke 66 is in the nature of aturn-table, as it turns around said stub-shaft. The vertical arms ofthis yoke 66 rotatively support the shaft 67, to which the bevel-pinion68 is fastened, the latter meshing with the bevel-gear 65. This turningyoke or body 66 constitutes a part of the secondary conveyer 57, theinner shaft 69 of said conveyer being rotatively supported by the saidvertical arms of the yoke. Said shaft 67, which it will be understoodisdriven through theintermediate gears just described, is connected bysprocket-gearing 70 with the outermost shaft of the secondary conveyer,so as to impart a traveling movement to the latter. By virtue of thedriving connections between the shaft 21 and the secondary conveyer 57it will be evident that the same may be freely turned without affectingthe motion of such secondary conveyer.

Referring now to Figs. 9 and 10, where I show a different kind ofmechanism for efiecting the reciprocation of the draw-bar, which isdenoted by 71, said draw-bar is supported exactly like the draw-bar 19,and hence the same characters will be employed to denote similar partsas were used in the other figures. The draw-bar 71, however, is dividedat a suitable pointin its length, as at 72, and the sheave 73 issupported between the branches of the dividing portion 72, said sheavebeing connected with the shaft 7 3' in a manner exactly as the pinion 18is connected with its shaft. The sheave 73 has a continuouscircumferential groove to receive the band 74, the ends of which areconnected with the draw-bar at the extremities of the divided portion 72thereof. When the shaft 7 3 is oppositely operated, and this is securedby mechanism hereinbefore described, the draw-bar 71 will, through theintermediate sheave and band, be reciprocated. In the modified form ofthe draw-bar of course the same is sustained by antifrictionrollers 75instead of pinions, as is the case with the draw-bar having rack-teeth,these rolls 75 being mounted exactly like said pinions and being theequivalents thereof.

In Fig. 11 I have shown another way for reciprocating the draw-bar.Referring to this figure, the shaft 78, which is the equivalent of theshaft 17, sustains for oscillation the depending arms of the yoke 79,the vertical stub-shaft extending centrally through the transverseportion of said yoke and also through the overhanging arm of the bracket81, fixed to the upper side of said yoke. A

channeled guide or boxing 82, having a toothed draw-bar 83, is supportedbetween the overhanging arm of said bracket to the yoke, and the shaft80 extends through the branches of the said channeled guide or boxing.This stub-shaft rigidly carries between the branches of the guide thepinion 84, meshing with the teeth of the draw-bar 83, and is furtherprovided at its lower end with the bevel-gear 85, suitably fastenedthereto and meshing with the bevel-gear 86, fastened to the shaft 78,whereby the pinion can be driven through the intermediate bevel-gearsto re-- ciprocate the draw-bar upon the opposite movement of the saidshaft 78. The yoke or carrier 79 for the draw-bar can be tilted in anysuitable way-for example, by means of the intermeshing sectors 46 and47. By virtoe of the mounting of the parts as shown in Fig. 11 the rackdraw-bar can be moved freely laterally within the desired limits withoutaffecting its driving connection with the pinion 84.

It will be evident from the foregoingdescription that the machine can bemoved along a line or battery of coke-ovens and that the contents of thelatter can be effectively discharged by the reciprocation of thedraw-bar, the coke when it leaves the even being delivered upon theprimary conveyer 56, which takes it to a secondary conveyer 57, and theactuating connections between the motor-shaft and these conveyers willbe such that their upper or working runs will be moved in the samedirection. The coke carried by the secondary conveyer can be deliveredinto a railroad-car or upon a dock or any other suitable place withinrange of the same.

The improved machineis thoroughly efiective in operation, and all itsmechanisms are within easy control of the operator or operators standingupon the deck or platform of the car or truck 1.

I have termed my improved apparatus a coke-drawing machine; but it isnot my intention to limit the use of the invention to any particularfield, for the machine may be employed with equal advantage for otherpurposesfor example, for leveling the coke in the ovens. In this case itwill not be necessary to provide the machine with conveying mechanism.

Having described the invention, What I claim is- 1. In a machine of theclass described, a laterally-movable draw-bar, a shaft, mechanism foroppositely rotating said shaft, a spherical portion fixed to said shaftand a power-transmitting member for actuating said draw-bar, having aspherical seat to receive said spherical portion and rotative with thelatter.

2. In a machine of the class described, a laterally movable and tiltabledraw-bar, a shaft, mechanism for oppositely rotating said shaft, aspherical portion fixed to said shaft and a power-transmitting memberfor actuating said draw-bar, having a spherical seat to receive saidspherical portion and rotative with the latter.

3. In a machine of the class described, a laterally-movable draw-bar, ashaft, mechanism for oppositely rotating said shaft, a spherical portionfixed to said shaft, and a pinion having a spherical seat to receivesaid spherical portion and rotative with the latter, said draw-barhaving teeth adapted to mesh with those of the pinion.

4. In a machine of the class described, a draw-bar, a guide for saiddraw-bar, a carrier to which said guide is connected for lateral motion,a shaft, a power-transmitting member for actuating the draw-bar, aspherical portion fixed to said shaft, and the powertransmitting memberhaving a seat shaped to agree with and to receive said sphericalportion, and the spherical portion and powertransmitting member beingkeyed together, mechanism for oppositely rotating said shaft, and meansfor moving the draw-bar laterallv.

5. In a machine of the class described, a draw-bar, a guide for saiddraw-bar, a carrier to which said guide is pivoted, a power-transmittingmember for actuating the draw-bar, a spherical portion fixed to saidshaft, and the power-transmitting member having a seat shaped to agreewith and to receive said spherical portion, and the latter being keyedto said power-transmitting member, mechanism for oppositely rotatingsaid shaft, and means connected with said shaft for shifting the same.

6. In a machine of the class described, a draw-bar, a guide for saiddraw-bar, a carrier for the guide, a shaft, a power-transmitting memberfor actuating the draw-bar, a spherical portion fixed to the shaft, andthe powertransmitting member having a seat shaped to agree with and toreceive said spherical portion and the latter being keyed to saidpower-transmitting member, mechanism for oppositely rotating said shaft,means for moving the draw-bar laterally, and wheels supported by saidguide for upholding the drawbar.

7. In a machine of the class described, a laterally-movable draw-bar, ashaft, mechanism for oppositely rotating said shaft, a spherical portionfixed to said shaft, a power-transmitting member for actuating saiddraw-bar, having a spherical seat to receive said spherical portion androtative with the latter, a tiltable carrier for said draw-bar,intermeshing gears one of which is connected with said carrier, andmeans for operating one of said gears.

8. In a machine of the class described, a draw-bar, a tilting carrierfor the draw-bar, a pair of intermeshing gears, one of which isconnected with said carrier, a hand-lever connected with one of theintermeshing gears for operating the same, a guide or boxing mounted forturning movement and adapted to receive said draw-bar, a hand-lever, anda link connected respectively with said guide or boxing, and thelast-mentioned hand-lever by universal joints.

9. In a machine of the class described, a draw-bar, a guide for saiddraw-bar, a pair of superposed rings connected together and betweenWhich said guide is mounted, said rings having projecting sleevesmounted for oscillation, intermeshing gears one of which is fastened toone of said sleeves, means for operating the draw-bar, and means foractuating a gear.

10. In a machine of the class described, a draw-bar, a channeled guidefor receiving said draw-bar, mechanism for operating the drawbar, a pairof superposed rings connected together and between which said guide islocated and mounted for oscillation, a strap supported against a ring, apivot extending through a cross-bar of one of the rings and also throughsaid guide, and mechanism for tilting said carrier.

11. In a machine of the class described, a draw-bar, a guide for saiddraw-bar, a pair of superposed rings constituting a carrier for theguide and between which the same is mounted for lateral motion, and saidrings having projecting sleeves mounted for oscillation, a pair ofintermeshing gears one of which is fastened to one of the sleeves, meansfor tilting the said rings or carrier, and means for moving the guidelaterally.

12. In a machine of the class described, a draw bar mounted for tiltingand lateral movements, mechanism for reciprocating the draw-bar, meansfor tilting said draw-bar, a

hand-lever for moving the draw-bar sidewise, and a link connected byuniversal joints with the draw-bar and hand-lever respectively.

13. In a machine of the class described, a draw-bar, a guide for saiddraw-bar, a carrier for the guide, the latter being mounted for lateralmotion relatively to the carrier, and said carrier being mounted fortilting movement, means for operating the draw-bar, mechanism fortilting said carrier, a handlever for moving the guide laterally, and alink connected by universal joints with the guide and hand-leverrespectively.

14:. In a machine of the class described, a draw-bar, a channeled guidefor said drawbar, a carrier for the guide consisting of a pair ofsuperposed rings between which said guide is mounted for lateral motionand said carrier having projecting sleeves mounted for oscillation, apair of intermeshing gears one of which is fixed to a sleeve, ahand-lever connected with the other gear, a second hand-lever foroperating the draw-bar guide laterally, and a link connected byuniversal joints to said guide and second hand-lever respectively.

l5.- In a machine of the class described, a draw-bar, mechanism forreciprocating the same, and primary and secondary conveyors, the primaryconveyer being adapted to receive the material discharged from areceptacle by an implement on the draw-bar and deliver the same onto thesecondary conveyer, and the secondary conveyer being mounted for lateralmotion relatively to the primary conveyer.

16. In a machine of the class described, a draw-bar, mechanism forreciprocating the same, primary and secondary conveyors, the primaryconveyer being adapted to receive the material discharged from areceptacle by an implement on the draw-bar and deliver the same onto thesecondary conveyer, and the secondary conveyer being mounted for lateralmotion relatively to the primary conveyer, a wheeled truck upon whichsaid parts are supported, and mechanism for propelling the truck.

17. In a machine of vthe class described, a draw-bar, mechanism forreciprocating the same, primary and secondary conveyers, the primaryconveyer being adapted to receive the material discharged from areceptacle by an implement on the draw-bar and deliver the same onto thesecondary conveyer, and the secondary conveyer being mounted for lateralmotion relatively to the primary conveyer, a Wheeled truck upon whichsaid parts are supported, and mechanism for propelling the truck, saidmechanism including devices for effecting the movement of the truck inopposite directions.

18. In a machine of the class described, a draw-bar, mechanism forreciprocating the same, and a conveyer arranged to receive material froma suitable source, a turn-table to which said conveyer is connected, ashaft supported by the turn-table and having means for operating saidconveyer, a second shaft third shaft, intermeshing bevel-gears fixed tothe second and third shafts, and means for driving the third shaft.

20. In a machine of the class described, a draw-bar, a shaft operativelyconnected to said draw-bar, a pair of oppositely-rotative power-drivenmembers loosely carried by said shaft, a clutch fixed to said shaft andslidable between said power-driven members and adapted to laterallyclutch the same to said shaft, a shipping-lever for the clutch, havingoppositely-disposed arms, springactuated treadles, levers connected withsaid treadles, links connected with the oppositely-disposed arms of theshipping-lever, one link being connected to the treadle-lever at a pointbeyond the fulcrum thereof and'the other link being connected to theother treadle-leverat a point between its fulcrum and treadle.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

BURTON J. MATTESON. Witnesses W. J. MURRAY, 1. D. MILLIKEN.

